Finding the Fourth Proportional to 149,645.31, 206,545.98 and 86,020.08
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Solution
The fourth proportional to 149,645.31, 206,545.98 and 86,020.08 is: 118,728.09
Step by Step Solution
- Step 1: Write the proportion equation
149,645.31 : 206,545.98 = 86,020.08 : x - Step 2: Convert to fraction form
149,645.31/206,545.98 = 86,020.08/x - Step 3: Cross multiply
149,645.31x = 206,545.98 × 86,020.08 - Step 4: Simplify right side
149,645.31x = 17,767,101,723.28 - Step 5: Solve for x
x = 17,767,101,723.28/149,645.31 - Step 6: Final answer
x = 118,728.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.